# Hamm Seismograph vs Seismometer+

The clearest difference is ads: Hamm Seismograph at none against Seismometer+'s shown. Hamm Seismograph also leads on monetization model (free vs ad-supported) and review sentiment (75% vs 67%). Seismometer+'s advantage is rating (4.5 vs 4.1) and ratings volume (82 vs 17). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Seismometer+ holds the better App Store score, 4.5 against 4.1. Both are backed by a comparable volume of ratings — 17 and 82 respectively. Written reviews complicate that: 75% of Hamm Seismograph's written reviews are positive against 67% of Seismometer+'s, so the app with the better star average is not the one people write more warmly about.

## The numbers

| Metric | Hamm Seismograph | Seismometer+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (17 ratings)](https://appshunter.io/ios/app/hamm-seismograph/id704450894/reviews) | **[4.5 (82 ratings)](https://appshunter.io/ios/app/seismometer-plus/id6739265160/reviews)** |
| Number of ratings | 17 | **82** |
| Positive reviews | **75.0% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 14 months | — |
| Monetization | **Free** | Ad-supported |
| Size | 1 MB | 3 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [i-NOVATiON GmbH](https://appshunter.io/developer/295851560) | [UniCom Technology](https://appshunter.io/developer/1270764210) |

## What reviewers say

### Hamm Seismograph

[App page](https://appshunter.io/ios/app/hamm-seismograph/id704450894)

This utility app visualizes structure-borne swings caused by construction machinery, helping to identify potentially damaging vibrations. It offers real-time display, adjustable presentation modes, and diagram freezing for clear analysis.

**Highlights:** Real-time swing display, Adjustable presentation modes, Line width selection, Diagram freeze function, Sunlight-readable display, Local data processing

**In-app purchases:** none


### Seismometer+

[App page](https://appshunter.io/ios/app/seismometer-plus/id6739265160)

Transform your device into a powerful seismometer to measure and visualize vibrations in real time. Track tremors, analyze surface stability, and explore the unseen movements around you with intuitive graphical displays. Perfect for science enthusiasts and the curious.

**Highlights:** Real-time X, Y, Z axis acceleration graphs, Cumulative vibration intensity analysis, Adjustable long-term data recording intervals, Dark mode display, Customizable graph update rates and sensitivity

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Hamm Seismograph free?

Hamm Seismograph is free to download, with no in-app purchases.

### Is Seismometer+ free?

Seismometer+ is free to download, with no in-app purchases.

### Which has better reviews, Hamm Seismograph or Seismometer+?

Seismometer+ is rated higher. Hamm Seismograph averages 4.1 out of 5 from 17 ratings, while Seismometer+ averages 4.5 from 82 ratings.

### Do Hamm Seismograph or Seismometer+ have ads?

Seismometer+ shows ads; Hamm Seismograph does not.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*